Coding Specialist, Fluent in Spanish – Latin America, Freelance AI Trainer

Invisible Technologies

. Converse with language models on software engineering tasks and technical scenarios in Spanish (Latin America) .

Posted 11/1/2026contractRemote • Costa RicaMid-LevelSenior💰 $8 - $65 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates fluency in Spanish (Latin America) and expertise in algorithms, data structures, and software architecture. Proficient in both frontend and backend development, with a strong focus on secure coding practices and debugging distributed systems.

Highest-signal resume keywords

Fluency In Spanish (Latin America)Expertise In AlgorithmsKnowledge Of Asynchronous ProgrammingReal-World Coding ExperienceTechnical Writing In Spanish

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AlgorithmsData StructuresSoftware ArchitectureFrontend DevelopmentBackend DevelopmentCloud InfrastructureSystems ProgrammingAsynchronous ProgrammingRESTful API IntegrationSecure Coding Practices

Soft Skills

Clear CommunicationMetacognitive Communication

Tools & Technologies

Distributed SystemsDebugging Tools

Certifications & Qualifications

Bachelor’s Degree In Computer ScienceMaster’s Degree In Software EngineeringPhD In Related Technical Field

Industry Keywords

Technical WritingOpen-Source ContributionsPrompt EngineeringEvaluation Metrics

Tech Stack

Tools & technologies

CloudDistributed Systems

About the role

Key responsibilities & impact

Converse with language models on software engineering tasks and technical scenarios in Spanish (Latin America)
Verify logical accuracy and coding fluency
Assess naturalness and correctness of Spanish language usage
Capture reproducible error traces
Suggest improvements to prompt engineering and evaluation metrics
Challenge advanced language models on asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems
Document failure modes to help harden model reasoning

Requirements

What you’ll need

Fluency in Spanish (Latin America)
Expertise in algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming
Knowledge of asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems
Bachelor’s, master’s, or PhD in computer science, software engineering, or a closely related technical field is ideal
Real-world coding experience, technical writing in Spanish, or open-source contributions signal fit
Clear, metacognitive communication and ability to “show your work”
Secure computer and high-speed internet, supplied by the contractor

Benefits

Comp & perks

Secure computer and high-speed internet supplied by contractor
Company-sponsored health insurance and PTO do not apply to contractors